Summary: Both of these concealers are great overall but the M.A.C Studio Finish could cover a tattoo and still appear light and natural on the skin. The Prescriptives Flawless Skin would be ideal for someone who has the odd blemish or late night out but for those of us that either go out more than we'd like to admit or are just the victim of hereditary dark circles and/or acne, I'd have to recommend the M.A.C Studio Finish- it's brilliant!